Provide preference for toolbar icons size

Feature information

The current preference editor on thunar only provides icon size editing for the main view and the side pane. The view menu provides an option to configure the toolbar but on here you can only choose to use symbolic icons.

I’ve found some information online on how to change this using the systems editor https://forums.linuxmint.com/viewtopic.php?t=468169

Version information

4.20.7

Ubuntu 26.04 with XFCE installed manually.